﻿/***************************************************************************
	Copyright (C) 2010 RapidWebDev Organization (Author: Eunge, Legal Name: Jian Liu, Email: eunge.liu@gmail.com)

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ***************************************************************************/

using System;
using System.Drawing;
using System.Data;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using WebGridView = System.Web.UI.WebControls.GridView;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using BaoJianSoft.Common;
using BaoJianSoft.Web.Extensions.Controls;

namespace BaoJianSoft.Web.Extensions.DynamicPages
{
	/// <summary>
	/// Class to render organization link.
	/// </summary>
	public class OrganizationLinkTemplate : ITemplate
	{
		private string organizationIdFieldName;

		/// <summary>
		/// Construct Organization Link Template
		/// </summary>
		/// <param name="organizationIdFieldName"></param>
		public OrganizationLinkTemplate(string organizationIdFieldName)
		{
			this.organizationIdFieldName = organizationIdFieldName;
		}

		/// <summary>
		/// When implemented by a class, defines the System.Web.UI.Control object that child controls and templates belong to. 
		/// These child controls are in turn defined within an inline template.
		/// </summary>
		/// <param name="container"></param>
		public void InstantiateIn(Control container)
		{
			OrganizationLink organizationLink = new OrganizationLink();
			organizationLink.DataBinding += new EventHandler(this.OnDataBinding);
			container.Controls.Add(organizationLink);

			WebUtility.RegisterAsyncPostBackControl(organizationLink);
		}

		private void OnDataBinding(object sender, EventArgs e)
		{
			try
			{
				OrganizationLink organizationLink = sender as OrganizationLink;
				object organizationIdObject = DataBinder.Eval(((GridViewRow)organizationLink.NamingContainer).DataItem, this.organizationIdFieldName);
				string organizationId = organizationIdObject != null ? organizationIdObject.ToString() : "";
				if (string.IsNullOrEmpty(organizationId)) return;
				organizationLink.OrganizationId = organizationId;
			}
			catch (Exception exp)
			{
				Logger.Instance(this).Warn(HttpContext.Current.Request.Url, exp);
			}
		}
	}
}

